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reflection class to echo all the properties

Posted on 2014-04-28
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Last Modified: 2014-04-30
<?php
require_once "fullshop.php";
class ReflectionUtil {
  static function getMethodSource( ReflectionMethod $method ) {
    $path = $method->getFileName();
    $lines = @file( $path );
    $from = $method->getStartLine();
    $to   = $method->getEndLine();
    $len  = $to-$from+1;
    return implode( array_slice( $lines, $from-1, $len+9 ));
  }
}

//$class = new ReflectionClass( 'CdProduct' );
//$method = $class->getMethod( 'getSummaryLine' );
$class = new ReflectionClass('shopProduct');
$method = $class->getMethod('__construct');
print ReflectionUtil::getMethodSource( $method );
$properties=$class->getProperties('__construct');
foreach ($properties as $property){
  echo '<br>property: '.$property;
}
?>

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output

public function __construct( $title, $firstName, $mainName, $price ) { $this->title = $title; $this->producerFirstName = $firstName; $this->producerMainName = $mainName; $this->price = $price; } public function getProducerFirstName() { return $this->producerFirstName; } public function getProducerMainName() { return $this->producerMainName; }
Warning: ReflectionClass::getProperties() expects parameter 1 to be long, string given in C:\wamp\www\POPP-edition4-code\9781430260318_Chapter_05_Code\listing5.34.php on line 19

Warning: Invalid argument supplied for foreach() in C:\wamp\www\POPP-edition4-code\9781430260318_Chapter_05_Code\listing5.34.php on line 20

I want to echo all the properties of the method __construct in the shopProduct class
I want to echo all the properties  in the shopProduct class
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Question by:rgb192
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4 Comments
 
LVL 111

Expert Comment

by:Ray Paseur
ID: 40029138
I want to echo all the properties of the method __construct in the shopProduct class
PHP OOP does not work that way.  "Properties" are the data elements of the object (not limited to any one method) and they are visible according to their definition as public, protected, or private.
http://php.net/manual/en/language.oop5.properties.php
http://php.net/manual/en/language.oop5.visibility.php

Within a method, there may be local variables.

<?php // demo/temp_rgb192.php
error_reporting(E_ALL);
echo '<pre>';

// SEE http://www.experts-exchange.com/Programming/Languages/Scripting/PHP/Q_28421888.html

Class Rgb192
{
    protected $myVar = 3;
    public function __construct($x)
    {
        $this->x = $x;
    }
    public function showMe()
    {
        $y = 5;
        return get_defined_vars();
    }
}

$obj = new RGB192('ABC');

// FINDS THE LOCAL VARIABLES INSIDE THE SHOWME() METHOD
var_dump($obj->showme());

// FINDS ALL OF THE PROPERTIES OF THE OBJECT - DOES NOT INCLUDE LOCAL VARS
var_dump($obj);

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For a deeper understanding of how to produce meta-data about your classes, you may want to make a tour-de-force study of this, setting up code examples to demonstrate the various methods:
http://php.net/manual/en/intro.reflection.php
0
 

Author Comment

by:rgb192
ID: 40029874
So object is properties and methods
Reflection is class
0
 
LVL 111

Accepted Solution

by:
Ray Paseur earned 2000 total points
ID: 40029975
Yes, but there is a lot to learn about Reflection.  This seems to be a good starting point:
http://www.php.net/manual/en/class.reflection.php#99616
0
 

Author Closing Comment

by:rgb192
ID: 40031904
thanks for reflection information
0

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